Visionary /(?)/

1. Of or pertaining to a visions or visions; characterized by, appropriate to, or favorable for, visions.

   The visionary hour When musing midnight reigns.

2. Affected by phantoms; disposed to receive impressions on the imagination; given to reverie; apt to receive, and act upon, fancies as if they were realities.

   Or lull to rest the visionary maid.

3. Existing in imagination only; not real; fanciful; imaginary; having no solid foundation; as, visionary prospect; a visionary scheme or project.

pl. Visionaries

1. One whose imagination is disturbed; one who sees visions or phantoms.
2. One whose imagination overpowers his reason and controls his judgment; an unpractical schemer; one who builds castles in the air; a daydreamer.